CVE-2026-50751
Critical 9.3 Exploited in the wild (KEV) Used in ransomware campaigns
Confirmed active exploitation — CISA KEV catalog
- Name
- Check Point Security Gateway Improper Authentication Vulnerability
- Added to catalog
- Remediation due date (US federal)
- Required action
- Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Description
A logic flow weakness in Remote Access and Mobile Access certificate validation in deprecated IKEv1 key exchange allows an unauthenticated remote attacker to bypass user authentication and establish a remote access VPN connection without a valid user password.
Metrics
- CVSS 3.1
-
9.3 (CRITICAL)
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N - EPSS — exploit probability
- 85% (percentile: 100) as of 1 November 2026
- CWE
- CWE-287
Affected products
checkpoint: gaia os; checkpoint: gaia embedded; checkpoint: quantum spark 1530; checkpoint: quantum spark 1550; checkpoint: quantum spark 1570; checkpoint: quantum spark 1570r; checkpoint: quantum spark 1590; checkpoint: quantum spark 1595r; checkpoint: quantum spark 1600; checkpoint: quantum spark 1800; checkpoint: quantum spark 1900; checkpoint: quantum spark 2000; checkpoint: quantum spark 1535; checkpoint: quantum spark 1555; checkpoint: quantum spark 1575
References
- https://support.checkpoint.com/results/sk/sk185033 MitigationPatchVendor Advisory
- https://blog.checkpoint.com/security/check-point-releases-important-hotfix-for-… Vendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026… US Government Resource